Lubricator for saw blades



M. GROGAN LUBRICATOR FOR SAW BLADES Jan. 12 1926.

Filed April 24, 1925' Patented Jan. 12, 1926.

* umran star as ear MICHAEL GROGAN, OF SAVANNAH, GEORGIA.

LUBRICATOR FOR SAW BLADES.

Application filed. April 24, 1925. Serial- No. 25,703.

To all whom itmmg concern:

Be it known that I, MICHAEL GROGAN, a citizen of the United States, residing. at, Savannah, in the county of Chatham and State of Georgia, have invented certain new and useful Improvements in Lubricator's for Saw Blades, of which the following is a specification.

'The present invention relates to a lubricating device for saws, and aims to provide a novel and improved device of that character for conveniently and efliciently supplying oil to the sides of a saw blade while the same is in use toprevent friction between the blade andthe opposite sides of the cut,

thus enabling the saw to render better and longer service.

Al1other' object of the invention is to pro-' vide a lubricating device which can bereadily attached to saws nowon the market without marring the appearance or interfering withthe use thereof, said'device also being readily removable from the saw for permitting cleaning or repairing thereof.-

A further object of the invention resides in the provision of suchan oiling device for saws, whereby the flow of oil from theoil reservoirs to the opposite sides of the saw blade is at all times under direct control of the operator for permitting the desired amount of oil to flow to said blade.

It is also an'obj'ect of the invention toprovide a lubricator of the kind indicated, which is simple and substantial in construction, which can be manufactured economirally, and which will be thoroughly efiicient andpractical in use.

NVith the foregoing and other objectsin. view, which will be apparent as the description proceeds, the invention residesinthe construction and arrangement of parts as hereinafter described andclaimed, 'itbeing understood that changes-can be made within the scope of whatis claimed, without departing from the spirit of'the invention.

7 The invention is illustrated inthe accompanying drawings, wherein: Y

Figure'l isafragmentary side elevation of a sawshowing my improved device applied thereto, 7 I p l.

Figure 2 is a plan view thereof, 1 V Figure 3 is asection taken on line 33 of Figure 1',

Figure 4 is a vertical 4-4 of Figure 2, and

section taken on line Figure 5is also a vertical section taken on line 55 of Figure 2. I

In carrying out the invention, the numeral 10 designates a saw blade having a handle .11 attached thereto, said handle'having removably attached to the same and on each slde'ther'eof a drum shaped oil' reservoir 12, each of which are identical in size and shape.

, The oil reservoirs are permanently attached together by a cross plate 13 extending across the handle 11 of the saw and being secured thereto by, screws 14. On the outer'cylindrical surfaces of each drum .is provided'a U-shaped member 15 for receiving the opposite. ends of a plate 16 extending across the handle in a manner'si-milar to the member 13 and being. secured to said handle "by screws 17, said platef16 providing detachable supporting means for the forward portionsof the drums. c

Arranged in each of the drumshaped reservoirs 12 and extending at, an angle therein is a tapered tube 18, said tubes extending through openings 19 inthe upper .80 ,7

cylindrical wall of the drums, and having their lower ends 20 screw'threaded in bosses 21xconstructed on the interior of the drums.

An opening 22 is arranged-in each of said tubes 18 below the level of oil in the reservoirs to permit oil to enter into said tubes,

the entrance of which is controlled by slidof the tubes.v The valve stems 23 extend upwardly through packing members 25 poranged to engage the interior tapered wall sitioned in the upper ends of the tubes 18,

and have theirupper extremities connected together by a cross rod 26, which extends through openings 27 arranged in the valve stems 23, said cross rodhaving ahead 28 on one end and a nut 29 on the other to permit the same to be removed from the valve stems in order to the device. The upper ends of the tubeslS have screw threaded heads 30- thereon for threadedly receiving cap members 31 having inwardly directed annularflanges thereon for engaging the packing members 25, which are cone shape, .to force the same in tight engagement with the tapered seats 32 arranged in the tubes 18. It can be seen that the packing members as 'described will preventleakage permit disassembling of Positioned on the plate 13 and arranged adjacent the space between the tubes 18 is arranged a U-shaped meinber'33 having a pin 34 extending between its free ends for pivotally supporting a lever 35,,which has an opening in one end thereof through which extends the cross rod 26. On the opposite end of said lever which extends to the opposite side of the pivot pin 34 is arranged a thumb engaging portion 36 to be engaged by theoperator for swinging said lever on its pivot to unseat the valves 23 and permit oil toenter the tubes 18. A second pin 37 extends between the opposite sides of the U-shaped inen'iber 33 for supporting thereon a coil spring 38 having its opposite ends engaging the bi'ght portion of the U-shaped member 33*and the lever'35 respectively in order to yieldably hold said lever in 'a position with the opening 22in the tube 18closed.

Attached to the 'outer' cylindrical wall of each "of the drums =12 is the opposite ends of a 'U-shaped pipe 89 having'abranchportion 40 communicating therewith intermediate its ends. *The branchrportion 40has arranged theredn "a threaded cap 41 for closing the sarne while the sawis in use, said cap being removed when itis desired to supply a quantity of oilto the drums 'or oil'reservoir's 1Q.

Arranged upohthe 'loiver portions of the drums 12 are screw threadedbosses 42, each having "attach'edthereto an elbow pipe 43. said 'elbow pipes being arranged to ex't end towards each other and adjacent the opposite sides or thesaw blade-10, as illustrated by the numeral 44. Arranged about the portions 44 of thebelbows 43am U-shape'l brackets 45, which have their opposite ends attached to the handle-11 in order to hold said elbows inarigid manner. The elbows 43 are arranged to communicate with the interior of the tube's 18 so as to receive oil from said tubes to supply the same to the saw blade, said supply bein-g'regulated bya .pair of nuts one arranged upon each of said elbows for engagi-ng the sides of the blade. It "can be seen that by revolving the nuts on the .POIlZlOllS dof the elbows "43, said-nuts will be either Finoved towards :attached to said "stems 23- was at 48, while the opposite ends of said springs Ee-Xtend through apertures 49 arranged in the tapered tubes 18, -a11d have -received thereover collars -50 arranged about} the tubes TS "in order ;to secure said ends of the springs --to the "tubes 1 8 in arigi'dinanneiy rByf at t-achi-ng hne end of, the springs 1-7 to the valve {stems 23' and the opposite ends of the springs to'the1-tubes1l8, it will be note d each of the drums 1-2 is of suiiicient 'sizeto permit the entire assembly carried by said tubes to be removed therethrough as an entirety.

As to the operation of my improved dev1ce, the filling cap ll 1s removed troin the branch pipe 40 and oil supplied to the cy lindrical drums by pouring the same into said branch lO. Atter-thecaptl has been replaced and the saw is brought into opera- -tion,the thumb engaging portion 36ofthe lever 351nay be depressed in order tosupply oil to the opposite sides of theblade 10, the operation of the lever 35 causing the valves 23 to be raised against tension of the spring 38 in orderfto unseat the tapered portions =24fcarried by said valves which will permit oil to fldw freely into the tubes 18 and elbows 43, from which the same 'is deposited on the blade.

to supply oil to the blade of the saw, it can be seen that the flow of oil to the blade is As itis V necessary to operate the lever 35 1n order at all times under direct control of the operator for permitting the desired amount thereof to besuppliedto saidblade.

Having thus described my invention,

what I claim as new is:

1. A lubricating device forsaws comprising a pair of oil reservoirs one attached on each side ofsaid saw, tubes communicating with said reservoirs for supplying oil to the blade of the saw, valves for regulating the flow 'ot'oil from said reservoir to said tubes, a rod connecting said valves together to cause the same to operate simultaneouslyyand means engaging said rod for operating said valves.

9-. Alubricating device for saws comprisa pair of oil reservoirs one attached on each side of said saw, a tube extending through each of said reservoirs, means attached to said reservoirs and comniun cating with said tubes for supplying oil to the opposite sides of a saw blade, each of said tubes-having an aperture in the side .wall thereof fonperinittingthe interior of said reservoirs to conimunicate,'Witlrtheinterior of said ;i ,1 es-,a-.slidingvalve"arranged in each offsaid {tubes for opening or closing communication between said reservoirsjan'd tubes, a cross ,rod detaohably connected to each of said valves for'causingtheisame to operate simultaneously, a lug carried by said reservoirs, a lever pivotally connected to said lug and having one end thereof connected to said cross rod for opening and closing said valves, a U-shaped oil supplying pipe having its opposite'ends'in communication with said reservoirs, and a branch pipe attached. to said U-shaped pipe intermediate its ends for receiving the oil to be supplied to said reservoirs.

3. A lubricating device for saws, comprising a pair of oil reservoirs one attached to each side of said saw, a pair-0f elbow pipes attached to said reservoirs and having communication therewith, said elbow pipes being arranged on the opposite sides of the saw blades and having portions thereof extending towards each other and adjacent said saw blade, and members carried by said elbows adjustable towards or away from said saw blade for regulating the flow of oil from the elbow pipes to the blade.

4. A lubricating device for saws, comprising a pair of oil reservoirs one attached to each side of the saw, a pair of elbow pipes one attached to each of said reservoirs and being in communication therewith, said el-' bows being arranged upon the opposite sides of the saw blade and extending towards and adjacent said blade, and members threaded on said elbow pipes as to be adjustable to Wards or away from the blade for regulating the flow of oil from the elbows to the blade.

j 5. A lubricating device for saws, comprising a pair of oil reservoirs one arranged upon each side of the saw, a pair of tapered tubes one arranged in each of said reservoirs and having one end thereof threadedly attached to the reservoir, means attached to said reservoirs and communicating with the threaded ends of said tubes for supplying oil to the blade of a saw, said tubes hav-' ing apertures in the side Walls thereof, a sliding valve arranged in each of said tubes for opening or closing communication through the apertures in said tubes, spring means attached to said valves and said tubes for yieldably holding one against rotation with relation to the other, a rod connecting the upper ends of said valves together to cause the same to operate simultaneously and to also hold said valves against rotation, and a hand lever attached to said rod for operating said valves.

In testimony whereof, I have'aflixed my signature.

MICHAEL GROGAN; 

